sensors Mode-S transponder

A56469

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N4468T · ROBINSON R-22 Mariner · operated by SPITZER HELICOPTER LLC

Hex
A56469
Octal
51262151
Decimal
10,839,145
Country
US
Tail
N4468T
Type
R22
Broadcasting now · callsign N4468T · 5,900 ft
Flights observed
2
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Current position

A56469 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A56469 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
N4468T - 2 2026-04-13

Recent flights last 2

DateFlightRouteTakeoffLandingDuration
2026-04-13 N4468T - Apr 13, 16:30 UTCApr 13, 17:45 UTC1h 15m
2026-04-13 N4468T - Apr 13, 14:35 UTCApr 13, 15:30 UTC55m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N4468T page for operator, model, and routing details .

Mode-S A56469 frequently asked

What is Mode-S code A56469?
A56469 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N4468T.
Where is Mode-S A56469 registered?
Mode-S code A56469 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A56469 broadcasting right now?
Yes. Mode-S A56469 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A56469, octal 51262151, decimal 10,839,145.
What flights does A56469 operate?
Mode-S A56469 has broadcast 1 distinct callsign, including N4468T.